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A bowling ball (I=(2/5)mr2) is rolling up a track without slipping. At the top of the 1.2 meter high bump, its velocity is 4.5 meter per second. Determine the balls velocity when it is 2.6 meter above the ground?
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What is the (magnitude of the) velocity of a rollercoaster at the bottom of a track that is 89.8 m high if it starts from rest? (Use the value g = 9.8 m/s2 for the acceleration of gravity.) Please provide work to explain
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